Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018
Proceeds from Sale of Productive Assets	$ 19,801	$ 12,915
OPERATING ACTIVITIES
Consolidated net income	868,639	924,877
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	1,634,677	1,517,344
Deferred income taxes, investment tax credits, and non-current taxes accrued	373,723	82,641
Impairment of Long-Lived Assets Held-for-use	225,175	210,263
Changes in working capital:
Receivables	(231,005)	(153,703)
Fuel inventory	(14,399)	49,728
Accounts payable	(175,246)	79,949
Taxes accrued	(2,420)	43,510
Interest accrued	(2,314)	(9,398)
Deferred fuel costs	90,319	(25,284)
Other working capital accounts	(19,232)	(86,063)
Changes in provisions for estimated losses	14,114	28,599
Changes in other regulatory assets	(92,861)	207,135
Increase (Decrease) in Regulatory Liabilities	(19,115)	(413,684)
Changes in pensions and other postretirement liabilities	(132,044)	(345,526)
Other Noncash Income (Expense)	(400,064)	(250,884)
Net cash flow provided by operating activities	2,117,947	1,859,504
INVESTING ACTIVITIES
Construction/capital expenditures	(3,079,726)	(2,883,047)
Allowance for equity funds used during construction	108,867	92,829
Nuclear fuel purchases	(55,176)	(170,819)
Payments for Nuclear Fuel	(55,176)	(170,819)
Payments to storm reserve escrow account	(6,184)	(4,515)
Decrease (increase) in other investments	30,370	(36,140)
Litigation proceeds for reimbursement of spent nuclear fuel storage costs	2,369	0
Proceeds from nuclear decommissioning trust fund sales	3,518,616	4,177,919
Investment in nuclear decommissioning trust funds	(3,566,690)	(4,187,161)
Proceeds from insurance	7,040	10,523
Changes in securitization account	(4,213)	(12,985)
Net cash flow used in investing activities	(3,024,926)	(3,000,481)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	7,133,571	5,604,131
Proceeds from Issuance of Preferred Stock and Preference Stock	33,486	0
Common stock and treasury stock	89,303	24,646
Proceeds from Issuance of Common Stock	607,650	0
Retirement of long-term debt	(5,859,714)	(4,181,820)
Changes in credit borrowings and commercial paper - net	(24,550)	368,370
Payments for Repurchase of Preferred Stock and Preference Stock	50,000	0
Dividends paid:
Common stock	(526,408)	(482,865)
Preferred stock	(12,328)	(10,317)
Other	(9,175)	25,540
Net cash flow provided by financing activities	1,381,835	1,347,685
Net increase in cash and cash equivalents	474,856	206,708
Cash and cash equivalents at beginning of period	480,975	781,273
Cash and cash equivalents at end of period	955,831	987,981
Cash paid / (received) during the period for:
Interest - net of amount capitalized	584,622	558,381
Income taxes	(8,649)	18,200
Entergy Arkansas [Member]
OPERATING ACTIVITIES
Consolidated net income	239,136	247,701
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	351,390	335,939
Deferred income taxes, investment tax credits, and non-current taxes accrued	85,246	28,463
Changes in working capital:
Receivables	(70,395)	(33,422)
Fuel inventory	(5,350)	7,523
Accounts payable	(24,766)	(20,904)
Taxes accrued	(18,608)	30,686
Interest accrued	20,206	13,558
Deferred fuel costs	52,468	24,463
Other working capital accounts	44,803	(8,827)
Changes in provisions for estimated losses	8,841	10,013
Changes in other regulatory assets	(55,749)	22,574
Increase (Decrease) in Regulatory Liabilities	32,537	(218,518)
Changes in pensions and other postretirement liabilities	(26,136)	(64,461)
Other Noncash Income (Expense)	(57,011)	(12,203)
Net cash flow provided by operating activities	576,612	362,585
INVESTING ACTIVITIES
Construction/capital expenditures	(488,487)	(517,882)
Allowance for equity funds used during construction	11,016	12,572
Change in money pool receivable - net	(6,896)	(13,421)
Nuclear fuel purchases	(26,732)	(79,142)
Payments for Nuclear Fuel	(26,732)	(79,142)
Proceeds from sale of nuclear fuel	22,834	31,897
Change in other investments	(1)	1
Proceeds from nuclear decommissioning trust fund sales	199,031	259,331
Investment in nuclear decommissioning trust funds	(214,205)	(269,913)
Proceeds from insurance	0	7,043
Changes in securitization account	(3,238)	(4,821)
Net cash flow used in investing activities	(506,676)	(574,337)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	781,510	658,427
Retirement of long-term debt	(473,827)	(372,447)
Change in money pool payable - net	(182,738)	(166,137)
Changes in credit borrowings and commercial paper - net	0	(49,974)
Dividends paid:
Common stock	(115,000)	0
Preferred stock	0	(1,071)
Other	(2,931)	8,520
Net cash flow provided by financing activities	7,014	427,318
Net increase in cash and cash equivalents	76,950	215,566
Cash and cash equivalents at beginning of period	119	6,216
Cash and cash equivalents at end of period	77,069	221,782
Cash paid / (received) during the period for:
Interest - net of amount capitalized	80,644	74,966
Proceeds from Contributions from Parent	0	350,000
Entergy Louisiana [Member]
OPERATING ACTIVITIES
Consolidated net income	565,977	514,260
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	498,397	490,638
Deferred income taxes, investment tax credits, and non-current taxes accrued	174,825	167,603
Changes in working capital:
Receivables	(72,018)	(61,281)
Fuel inventory	(1,752)	6,120
Accounts payable	(40,131)	(20,481)
Taxes accrued	78,910	(22,893)
Interest accrued	5,102	2,382
Deferred fuel costs	(11,459)	(25,781)
Other working capital accounts	(62,332)	(5,086)
Changes in provisions for estimated losses	9,748	7,800
Changes in other regulatory assets	(103,635)	49,245
Increase (Decrease) in Regulatory Liabilities	(26,115)	(29,943)
Changes in pensions and other postretirement liabilities	(15,761)	(59,305)
Other Noncash Income (Expense)	(37,313)	(69,978)
Net cash flow provided by operating activities	962,443	943,300
INVESTING ACTIVITIES
Construction/capital expenditures	(1,277,108)	(1,322,633)
Allowance for equity funds used during construction	59,194	57,292
Change in money pool receivable - net	35,485	(2,444)
Nuclear fuel purchases	(63,157)	(32,362)
Payments for Nuclear Fuel	(63,157)	(32,362)
Proceeds from sale of nuclear fuel	11,608	54,088
Payments to storm reserve escrow account	(5,013)	(3,297)
Proceeds from nuclear decommissioning trust fund sales	307,164	943,306
Investment in nuclear decommissioning trust funds	(331,138)	(973,218)
Proceeds from insurance	7,040	3,480
Changes in securitization account	(6,467)	(8,056)
Payment For Proceed From Other Investing Activities	2,369	0
Net cash flow used in investing activities	(1,260,023)	(1,283,844)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	2,332,003	1,950,482
Retirement of long-term debt	(1,798,014)	(1,338,227)
Changes in credit borrowings and commercial paper - net	0	(43,540)
Dividends paid:
Common stock	(155,000)	(56,000)
Other	3,272	5,507
Net cash flow provided by financing activities	382,261	518,222
Net increase in cash and cash equivalents	84,681	177,678
Cash and cash equivalents at beginning of period	43,364	35,907
Cash and cash equivalents at end of period	128,045	213,585
Cash paid / (received) during the period for:
Interest - net of amount capitalized	219,323	208,028
Income taxes	0	(2,973)
Entergy Mississippi [Member]
OPERATING ACTIVITIES
Consolidated net income	98,302	111,818
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	123,145	114,293
Deferred income taxes, investment tax credits, and non-current taxes accrued	32,596	40,537
Changes in working capital:
Receivables	(37,843)	(49,456)
Fuel inventory	(3,872)	33,705
Accounts payable	(574)	(9,845)
Taxes accrued	(26,556)	(24,280)
Interest accrued	2,093	(4,767)
Deferred fuel costs	47,569	9,826
Other working capital accounts	533	(8,348)
Changes in provisions for estimated losses	(3,099)	7,894
Changes in other regulatory assets	(923)	26,060
Increase (Decrease) in Regulatory Liabilities	(16,615)	(139,063)
Changes in pensions and other postretirement liabilities	(6,930)	(15,987)
Other Noncash Income (Expense)	(4,387)	125,637
Net cash flow provided by operating activities	203,439	218,024
INVESTING ACTIVITIES
Construction/capital expenditures	(314,622)	(275,189)
Allowance for equity funds used during construction	6,341	6,351
Change in money pool receivable - net	32,481	1,633
Decrease (increase) in other investments	(507)	(960)
Net cash flow used in investing activities	(276,307)	(268,165)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	292,763	0
Retirement of long-term debt	(150,000)	0
Change in money pool payable - net	0	33,816
Dividends paid:
Preferred stock	0	(715)
Other	(7,913)	10,989
Net cash flow provided by financing activities	134,850	44,090
Net increase in cash and cash equivalents	61,982	(6,051)
Cash and cash equivalents at beginning of period	36,954	6,096
Cash and cash equivalents at end of period	98,936	45
Cash paid / (received) during the period for:
Interest - net of amount capitalized	41,753	44,781
Entergy New Orleans [Member]
OPERATING ACTIVITIES
Consolidated net income	46,934	50,558
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	43,146	41,756
Deferred income taxes, investment tax credits, and non-current taxes accrued	20,427	25,605
Changes in working capital:
Receivables	(14,741)	(15,310)
Fuel inventory	(374)	495
Accounts payable	(11,654)	8,868
Taxes accrued	242	(8,743)
Interest accrued	14	564
Deferred fuel costs	8,328	(59)
Other working capital accounts	(8,737)	(5,062)
Changes in provisions for estimated losses	1,423	417
Changes in other regulatory assets	(14,435)	19,068
Increase (Decrease) in Regulatory Liabilities	(15,371)	(5,353)
Changes in pensions and other postretirement liabilities	(5,784)	(12,956)
Other Noncash Income (Expense)	28,015	479
Net cash flow provided by operating activities	77,433	100,327
INVESTING ACTIVITIES
Construction/capital expenditures	(162,177)	(142,585)
Allowance for equity funds used during construction	7,769	3,762
Change in money pool receivable - net	22,016	10,607
Payments to storm reserve escrow account	(1,382)	(905)
Receipts from storm reserve escrow account	0	3
Changes in securitization account	(3,043)	(4,115)
Net cash flow used in investing activities	(136,817)	(133,233)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	0	59,590
Retirement of long-term debt	(5,420)	(5,342)
Change in money pool payable - net	46,318	0
Dividends paid:
Common stock	0	(23,750)
Other	(1,165)	2,587
Net cash flow provided by financing activities	39,733	33,085
Net increase in cash and cash equivalents	(19,651)	179
Cash and cash equivalents at beginning of period	19,677	32,741
Cash and cash equivalents at end of period	26	32,920
Cash paid / (received) during the period for:
Interest - net of amount capitalized	17,211	14,584
Income taxes	(4,899)	0
Entergy Texas [Member]
OPERATING ACTIVITIES
Consolidated net income	133,502	113,985
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	113,071	93,272
Deferred income taxes, investment tax credits, and non-current taxes accrued	21,898	640
Changes in working capital:
Receivables	21,578	(40,287)
Fuel inventory	(1,476)	1,045
Accounts payable	(58,792)	(12,864)
Taxes accrued	3,545	24,476
Interest accrued	(11,478)	(6,084)
Deferred fuel costs	(6,588)	(33,734)
Other working capital accounts	(13,740)	891
Changes in provisions for estimated losses	(3,470)	1,006
Changes in other regulatory assets	63,793	64,311
Increase (Decrease) in Regulatory Liabilities	(83,674)	15,313
Changes in pensions and other postretirement liabilities	(7,209)	(20,999)
Other Noncash Income (Expense)	3,921	(3,294)
Net cash flow provided by operating activities	174,881	197,677
INVESTING ACTIVITIES
Construction/capital expenditures	(622,342)	(291,118)
Allowance for equity funds used during construction	19,029	5,820
Proceeds from Sale of Other Assets, Investing Activities	0	3,753
Change in money pool receivable - net	(8,299)	43,686
Changes in securitization account	8,535	4,009
Net cash flow used in investing activities	(603,077)	(233,850)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	986,477	0
Proceeds from Issuance of Preferred Stock and Preference Stock	33,486	0
Retirement of long-term debt	(563,246)	(60,500)
Change in money pool payable - net	(22,389)	0
Dividends paid:
Other	(1,410)	1,657
Net cash flow provided by financing activities	520,418	(58,843)
Net increase in cash and cash equivalents	92,222	(95,016)
Cash and cash equivalents at beginning of period	56	115,513
Cash and cash equivalents at end of period	92,278	20,497
Cash paid / (received) during the period for:
Interest - net of amount capitalized	73,752	69,669
Income taxes	2,292	(624)
Proceeds from Contributions from Parent	87,500	0
System Energy [Member]
OPERATING ACTIVITIES
Consolidated net income	73,081	68,667
Adjustments to reconcile consolidated net income to net cash flow provided by operating activities:
Depreciation, amortization, and decommissioning, including nuclear fuel amortization	163,069	133,877
Deferred income taxes, investment tax credits, and non-current taxes accrued	(2,426)	14,159
Changes in working capital:
Receivables	(7,456)	20,806
Accounts payable	2,935	22,637
Taxes accrued	14,579	(1,017)
Interest accrued	(1,478)	2,311
Other working capital accounts	3,411	(52,524)
Changes in other regulatory assets	(9,121)	(4,773)
Increase (Decrease) in Regulatory Liabilities	90,118	(36,119)
Changes in pensions and other postretirement liabilities	(5,013)	(11,629)
Other Noncash Income (Expense)	(97,024)	(24,839)
Net cash flow provided by operating activities	224,675	131,556
INVESTING ACTIVITIES
Construction/capital expenditures	(92,228)	(166,458)
Allowance for equity funds used during construction	5,518	7,032
Change in money pool receivable - net	92,347	95,302
Nuclear fuel purchases	(2,046)	(110,485)
Payments for Nuclear Fuel	(2,046)	(110,485)
Proceeds from sale of nuclear fuel	26,272	12,867
Proceeds from nuclear decommissioning trust fund sales	348,606	357,209
Investment in nuclear decommissioning trust funds	(362,573)	(365,040)
Net cash flow used in investing activities	15,896	(169,573)
Proceeds from the issuance of:
Proceeds from the issuance of long-term debt	1,007,775	211,985
Retirement of long-term debt	(1,069,206)	(124,304)
Changes in credit borrowings and commercial paper - net	0	(17,830)
Dividends paid:
Common stock	(110,500)	(64,480)
Net cash flow provided by financing activities	(171,931)	5,371
Net increase in cash and cash equivalents	68,640	(32,646)
Cash and cash equivalents at beginning of period	95,685	287,187
Cash and cash equivalents at end of period	164,325	254,541
Cash paid / (received) during the period for:
Interest - net of amount capitalized	$ 21,052	$ 10,308